summary refs log tree commit diff stats
path: root/handlers_test.go
diff options
context:
space:
mode:
authorBen Morrison <ben@gbmor.dev>2019-06-05 00:32:27 -0400
committerBen Morrison <ben@gbmor.dev>2019-06-05 00:32:27 -0400
commit0810e49fee824981ff0ecef33680916f5d5361c4 (patch)
tree129470af92aa4481ab21299689a014de0f5c65b3 /handlers_test.go
parent4b056d5922d7f5983e4e540c17dd37fa5e9b5550 (diff)
downloadgetwtxt-0810e49fee824981ff0ecef33680916f5d5361c4.tar.gz
updated readme installation/configuration sections
Diffstat (limited to 'handlers_test.go')
0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-23 22:26:35 +0000


 


>104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153


//: Jump primitives

:(scenario jump_can_skip_instructions)
recipe main [
  jump 1:offset
  1:number <- copy 1
]
+run: jump 1:offset
-run: 1:number <- copy 1
-mem: storing 1 in location 1

:(before "End Primitive Recipe Declarations")
JUMP,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["jump"] = JUMP;
:(before "End Primitive Recipe Checks")
case JUMP: {
  if (SIZE(inst.ingredients) != 1) {
    raise << maybe(Recipe[r].name) << "'jump' requires exactly one ingredient, but got " << inst.to_string() << '\n' << end();
    break;
  }
  if (!is_mu_scalar(inst.ingredients.at(0))) {
    raise << maybe(Recipe[r].name) << "first ingredient of 'jump' should be a label or offset, but got " << inst.ingredients.at(0).original_string << '\n' << end();
    break;
  }
  break;
}
:(before "End Primitive Recipe Implementations")
case JUMP: {
  assert(current_instruction().ingredients.at(0).initialized);
  current_step_index() += ingredients.at(0).at(0)+1;
  trace(Primitive_recipe_depth, "run") << "jumping to instruction " << current_step_index() << end();
  continue;  // skip rest of this instruction
}

//: special type to designate jump targets
:(before "End Mu Types Initialization")
Type_ordinal["offset"] = 0;

:(scenario jump_backward)
recipe main [
  jump 1:offset  # 0 -+
  jump 3:offset  #    |   +-+ 1
                 #   \/  /\ |
  jump -2:offset #  2 +-->+ |
]                #         \/ 3
+run: jump 1:offset
+run: jump -2:offset
+run: jump 3:offset

:(before "End Primitive Recipe Declarations")
JUMP_IF,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["jump-if"] = JUMP_IF;
:(before "End Primitive Recipe Checks")
case JUMP_IF: {
  if (SIZE(inst.ingredients) != 2) {
    raise << maybe(Recipe[r].name) << "'jump-if' requires exactly two ingredients, but got " << inst.to_string() << '\n' << end();
    break;
  }
  if (!is_mu_scalar(inst.ingredients.at(0))) {
    raise << maybe(Recipe[r].name) << "'jump-if' requires a boolean for its first ingredient, but got " << inst.ingredients.at(0).original_string << '\n' << end();
    break;
  }
  if (!is_mu_scalar(inst.ingredients.at(1))) {
    raise << maybe(Recipe[r].name) << "'jump-if' requires a label or offset for its second ingredient, but got " << inst.ingredients.at(0).original_string << '\n' << end();
    break;
  }
  break;
}
:(before "End Primitive Recipe Implementations")
case JUMP_IF: {
  assert(current_instruction().ingredients.at(1).initialized);
  if (!ingredients.at(0).at(0)) {
    trace(Primitive_recipe_depth, "run") << "jump-if fell through" << end();
    break;
  }
  current_step_index() += ingredients.at(1).at(0)+1;
  trace(Primitive_recipe_depth, "run") << "jumping to instruction " << current_step_index() << end();
  continue;  // skip rest of this instruction
}

:(scenario jump_if)
recipe main [
  jump-if 999, 1:offset
  123:number <- copy 1
]
+run: jump-if 999, 1:offset
+run: jumping to instruction 2
-run: 1:number <- copy 1
-mem: storing 1 in location 123

:(scenario jump_if_fallthrough)
recipe main [
  jump-if 0, 1:offset
  123:number <- copy 1
]
+run: jump-if 0, 1:offset
+run: jump-if fell through
+run: 123:number <- copy 1
+mem: storing 1 in location 123

:(before "End Primitive Recipe Declarations")
JUMP_UNLESS,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["jump-unless"] = JUMP_UNLESS;
:(before "End Primitive Recipe Checks")
case JUMP_UNLESS: {
  if (SIZE(inst.ingredients) != 2) {
    raise << maybe(Recipe[r].name) << "'jump-unless' requires exactly two ingredients, but got " << inst.to_string() << '\n' << end();
    break;
  }
  if (!is_mu_scalar(inst.ingredients.at(0))) {
    raise << maybe(Recipe[r].name) << "'jump-unless' requires a boolean for its first ingredient, but got " << inst.ingredients.at(0).original_string << '\n' << end();
    break;
  }
  if (!is_mu_scalar(inst.ingredients.at(1))) {
    raise << maybe(Recipe[r].name) << "'jump-unless' requires a label or offset for its second ingredient, but got " << inst.ingredients.at(0).original_string << '\n' << end();
    break;
  }
  break;
}
:(before "End Primitive Recipe Implementations")
case JUMP_UNLESS: {
  assert(current_instruction().ingredients.at(1).initialized);
  if (ingredients.at(0).at(0)) {
    trace(Primitive_recipe_depth, "run") << "jump-unless fell through" << end();
    break;
  }
  current_step_index() += ingredients.at(1).at(0)+1;
  trace(Primitive_recipe_depth, "run") << "jumping to instruction " << current_step_index() << end();
  continue;  // skip rest of this instruction
}

:(scenario jump_unless)
recipe main [
  jump-unless 0, 1:offset
  123:number <- copy 1
]
+run: jump-unless 0, 1:offset
+run: jumping to instruction 2
-run: 123:number <- copy 1
-mem: storing 1 in location 123

:(scenario jump_unless_fallthrough)
recipe main [
  jump-unless 999, 1:offset
  123:number <- copy 1
]
+run: jump-unless 999, 1:offset
+run: jump-unless fell through
+run: 123:number <- copy 1
+mem: storing 1 in location 123